Thanks for the link. One point stuck out to me from the last article;
The strength of the populists’ case lies in a simple fact: Democrats have everything to gain by polarizing the electorate around issues of economics. In Drutman’s analysis, 73.5 percent of 2016 voters espoused broadly liberal views on economic policy. If people voted solely on the basis of their intuitions about how government should intervene in the economy (when interrogated about such matters by pollsters), Democrats would dominate all levels of government.
The pundits after all said Clinton lost due to lacking a strong 'economic message', so even they grasp this point slightly, but then arguing Warren and Bernie are 'too far to the left' and other nonsense on economics.